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Anne L'Huillier

Anne l'Huillier

Professor

Anne L'Huillier

Effect of plasma-core-induced self-guiding on phase matching of high-order harmonic generation in gases

Author

  • Balázs Major
  • Katalin Kovács
  • Valer Tosa
  • Piotr Rudawski
  • Anne L'Huillier
  • Katalin Varjú

Summary, in English

In this work, we numerically study a self-guiding process in which ionization plays a dominant role and analyze its effect on high-order harmonic generation (HHG) in gases. Although this type of self-guiding-termed "plasmacore- induced self-guiding" in previous works-limits the achievable cutoff by regulating the intensity of the laser beam, it provides favorable conditions for phase matching, which is indispensable for high-flux-gas highharmonic sources. To underline the role of self-guiding in efficient HHG, we investigate the time-dependent phase-matching conditions in the guided beam and show how the spatiotemporally constant fundamental intensity contributes to the constructive buildup of the harmonic field in a broad photon energy range up to the provided cutoff.

Department/s

  • Atomic Physics

Publishing year

2019-06

Language

English

Pages

1594-1601

Publication/Series

Journal of the Optical Society of America B: Optical Physics

Volume

36

Issue

6

Document type

Journal article

Publisher

Optical Society of America

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0740-3224